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Plastics Engineering Company 07321 Two-Stage Phenolic

Plenco® 07321 is an organic fiber reinforced phenolic molding compound, offering improved mechanical strength and excellent dimensional stability. UL recognized under component file E40654. 07321 is available in black. 07321 was qualified under military specification MIL-M-14 (superseded by ASTM D-5948) TYPE CFI-5 and batches can, if requested and paid for, be tested for certification to the standard.

Functions: Molding Compound

Polymer Name: Phenol Formaldehyde (PF)

Reinforcement Material: Glass Fibers

Processing Methods: Compression Molding, Injection Molding, Transfer Molding

End Uses: Brake Pads, Cases, Housings, Switch Board

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Identification & Functionality

Additives Included
Reinforcement Material
Composite Materials Functions

Features & Benefits

Applications & Uses

Composites Processing Methods
Plastics & Elastomers Processing Methods

Properties

Color
Flame Rating
Physical Form
Processing Information (Injection Molding)
ValueUnitsTest Method / Conditions
Apparent Density0.57g/cm³ASTM D1895
Arc Resistance120secASTM D495
Coefficient of Thermal Expansion5.7e-05per °CASTM E831
Comparative Tracking Index164VASTM D3638
Compressive Strength169MPaASTM D695
Deflection Temperature (at 1.82MPa)164°CASTM D648
Dielectric Strength (Short Time)9.2kV/mmASTM D149
Dissipation Factor (at 1MHz)0.062ASTM D150
Flexural Modulus5808MPaASTM D790
Flexural Strength55.1MPaASTM D790
Heat Resistance187°CASTM D794
Impact Strength (Drop Ball)218J/mPlenco
Impact Strength (Notched, Charpy)30.5J/mASTM D256
Impact Strength (Notched, Izod)31.7J/mASTM D256
Mold Shrinkage *0.0086m/mASTM D6289
Oxygen Index24.2%ASTM D2863
Permittivity (at 1MHz)4.6ASTM D150
Post Shrinkage (at 120°C, 72hr)0.39%ASTM D6289
Rockwell Hardness73E-ScaleASTM D785
Specific Gravity1.38ASTM D792
Tensile Elongation0.8%ASTM D638
Tensile Modulus6941MPaASTM D638
Tensile Strength43MPaASTM D638
UL Flammability (at 1.5mm)HBUL 94
Volume Resistivity100000000000ohm·cmASTM D257
Water Absorption0.49%ASTM D570
Processing Information (Compression Molding)
ValueUnitsTest Method / Conditions
Apparent Density0.55g/cm³ASTM D1895
Arc Resistance120secASTM D495
Coefficient of Thermal Expansion5.7e-05per °CASTM E831
Comparative Tracking Index162VASTM D3638
Compressive Strength146MPaASTM D695
Deflection Temperature (at 1.82MPa)178°CASTM D648
Dielectric Strength (Short Time)12.3kV/mmASTM D149
Dissipation Factor (at 1MHz)0.048ASTM D150
Flexural Modulus7610MPaASTM D790
Flexural Strength76.7MPaASTM D790
Heat Resistance175°CASTM D794
Impact Strength (Drop Ball)417J/mPlenco
Impact Strength (Notched, Izod)40.8J/mASTM D256
Impact Strength (Notched, Charpy)41.3J/mASTM D256
Mold Shrinkage *0.0026m/mASTM D6289
Oxygen Index24.2%ASTM D2863
Permittivity (at 1MHz)4.7ASTM D150
Post Shrinkage (at 120°C, 72hr)0.14%ASTM D6289
Rockwell Hardness70E-ScaleASTM D785
Specific Gravity1.39ASTM D792
Tensile Elongation0.4%ASTM D638
Tensile Modulus8620MPaASTM D638
Tensile Strength34MPaASTM D638
UL Flammability (at 1.5mm)HBUL 94
Volume Resistivity600000000000ohm·cmASTM D257
Water Absorption0.6%ASTM D570
Processing Information (Transfer Molding)
ValueUnitsTest Method / Conditions
Apparent Density0.47g/cm³ASTM D1895
Arc Resistance133secASTM D495
Coefficient of Thermal Expansion5.7e-05per °CASTM E831
Comparative Tracking Index150VASTM D3638
Compressive Strength179MPaASTM D695
Deflection Temperature (at 1.82MPa)163°CASTM D648
Dielectric Strength (Short Time)8.3kV/mmASTM D149
Dissipation Factor (at 1MHz)0.074ASTM D150
Flexural Modulus6737MPaASTM D790
Flexural Strength67MPaASTM D790
Heat Resistance187°CASTM D794
Impact Strength (Drop Ball)312J/mPlenco
Impact Strength (Notched, Izod)28.4J/mASTM D256
Impact Strength (Notched, Charpy)29.1J/mASTM D256
Mold Shrinkage *0.0091m/mASTM D6289
Oxygen Index24.2%ASTM D2863
Permittivity (at 1MHz)5.3ASTM D150
Post Shrinkage (at 120°C, 72hr)0.29%ASTM D6289
Rockwell Hardness76E-ScaleASTM D785
Specific Gravity1.4ASTM D792
Tensile Elongation0.7%ASTM D638
Tensile Modulus6852MPaASTM D638
Tensile Strength43MPaASTM D638
UL Flammability (at 1.5mm)HBUL 94
Volume Resistivity170000000000ohm·cmASTM D257
Water Absorption0.37%ASTM D570

Regulatory & Compliance

Certifications & Compliance
Quality Standards